The root of Cain’s sin was jealousy - he coveted what his brother had and killed him over it. We cannot play the comparison game - nothing good comes from that. The harshest critic of a believer is a fellow believer. We have to be better than that, to let forgiveness reign. Why? Because those who are outside the church will know what God’s love is like by looking at Christians’ love for each other.

• In our sin we cannot be jealous of others' righteousness.
• Being hated shouldn't surprise us. Being hated by a believer should. 
• To hate is to murder, to murder is to sin, to sin is to die. 
• A believer cannot live in excess while their fellow Christian struggles to survive.
• Christians can calm their natural (sinful) hearts by participating in real acts of love. By doing so, they can find rest in God.